package com.zcm.utils;

import java.security.MessageDigest;
import java.text.MessageFormat;

public class StringUtils {
	
	
	public static String getReplace(String content,String word){
		if(com.jiangge.utils.StringUtils.isNotEmpty(content)){
			String ss = "<font color='red'>"+word+"</font>";
			content = content.replace(word, ss);
		}
		return content;
	}
	
	
	public static String replace(String content){
		String word = content.replace("，", ",").trim();
		return word;
	}
	
	/**
	 * 搜索 XSS过滤
	 * @param word
	 * @return
	 */
	public static String getSearchWord(String word){
		word = word.trim();
		word = word.replace ('<',' '); 
		word = word.replace ('>',' '); 
		word = word.replace ('"',' ');
		word = word.replace ('\'',' ');
		word = word.replace ('/',' ');
		word = word.replace ('%',' '); 
		word = word.replace (';',' '); 
		word = word.replace ('(',' '); 
		word = word.replace (')',' '); 
		word = word.replace ('&',' '); 
		word = word.replace ('+','_'); 
		return word;
	}
	
	/**
	 * MessageFormat用来格式化一个消息
	 * @param message
	 * @param array
	 * @return
	 */
	public static String messageFormat(String message,String[] array){
		MessageFormat messageFormat = new MessageFormat(message);  
		String value = messageFormat.format(array);  
		return value;
	}

	/**
	 * 获取文件扩展名
	 * 
	 * @param filename
	 * @return
	 */
	public static String getExtensionName(String filename) {
		if ((filename != null) && (filename.length() > 0)) {
			int dot = filename.lastIndexOf('.');
			if ((dot > -1) && (dot < (filename.length() - 1))) {
				return filename.substring(dot + 1);
			}
		}
		return filename;
	}

	/**
	 * MD5加密处理
	 * 
	 * @param s
	 * @return
	 */
	public final static String MD5(String s) {
		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
				'A', 'B', 'C', 'D', 'E', 'F' };
		try {
			byte[] btInput = s.getBytes();
			/** 获得MD5摘要算法的 MessageDigest 对象 **/
			MessageDigest mdInst = MessageDigest.getInstance("MD5");
			/** 使用指定的字节更新摘要 **/
			mdInst.update(btInput);
			/** 获得密文 **/
			byte[] md = mdInst.digest();
			/** 把密文转换成十六进制的字符串形式 **/
			int j = md.length;
			char str[] = new char[j * 2];
			int k = 0;
			for (int i = 0; i < j; i++) {
				byte byte0 = md[i];
				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
				str[k++] = hexDigits[byte0 & 0xf];
			}
			return new String(str);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

}
